for each \(\phi \in [0,\pi )\) . We shall have established the theorem if we prove that for all but finitely many primes \(p\)  the sequence \(\left(\frac{a(tp^{2\nu })}{\varepsilon (p)^\nu }\right)_{\nu \in \mathbb {N}}\) , changes sign infinitely often. To this end, we shall follow [1]}.
